cli: Report BPF masquerading devices
cli: Report BPF masquerading devices

This commit extends "cilium status" to show which devices can run
the BPF masquerading program. E.g.:

    $ cilium status | grep Masquerading
    Masquerading:           BPF   [eth0, eth1]

Signed-off-by: Martynas Pumputis <6b0d31c0d563223024da45691584643ac78c96e8@lambda.lt>

tgraf/cilium,tklauser/cilium,cilium-team/cilium,michi-covalent/cilium,tklauser/cilium,tgraf/cilium,michi-covalent/cilium,michi-covalent/cilium,tklauser/cilium,cilium-team/cilium,tgraf/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,tklauser/cilium,tklauser/cilium,cilium/cilium,tgraf/cilium,michi-covalent/cilium,cilium/cilium,tgraf/cilium,cilium/cilium,tgraf/cilium